/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.antgroup.geaflow.shuffle.pipeline.buffer;

import com.antgroup.geaflow.shuffle.service.ShuffleManager;

public abstract class AbstractBuffer implements OutBuffer {

    private final ShuffleMemoryTracker memoryTracker;

    public AbstractBuffer(boolean enableMemoryTrack) {
        this.memoryTracker = enableMemoryTrack
                             ? ShuffleManager.getInstance().getShuffleMemoryTracker() : null;
    }

    public AbstractBuffer(ShuffleMemoryTracker memoryTracker) {
        this.memoryTracker = memoryTracker;
    }

    protected void requireMemory(long dataSize) {
        if (this.memoryTracker != null) {
            memoryTracker.requireMemory(dataSize);
        }
    }

    protected void releaseMemory(long dataSize) {
        if (this.memoryTracker != null) {
            memoryTracker.releaseMemory(dataSize);
        }
    }

    protected abstract static class AbstractBufferBuilder implements BufferBuilder {

        private long recordCount;
        protected boolean memoryTrack;

        @Override
        public long getRecordCount() {
            return this.recordCount;
        }

        @Override
        public void increaseRecordCount() {
            this.recordCount++;
        }

        protected void resetRecordCount() {
            this.recordCount = 0;
        }

        @Override
        public void enableMemoryTrack() {
            this.memoryTrack = true;
        }

    }

}
